Heavy Duty Black PU Wear Resistant Cart Caster

Heavy Duty Black PU Wear Resistant Cart Caster Heavy Duty PU Casters Made of high-quality PU material, strong load-bearing capacity, low noise,  high durability, suitable for heavy-duty equipment and machinery. It is an ideal choice for logistics,  manufacturing, and other industrial fields. Specifications:  1) Wheel diameter: 4" 5'' 6" 8" Heavy Duty Caster 2) Wheel Width: 50mm Industrial Caster Wheels   3) Load Capacity: 250 330 390 400kg Industrial Caster    4) Material: PU Polyurethane Caster Wheels  5) Bearing: Double Bearing  6) Fixed / Swivel / Brake (can be with side brake or total brake)  7) Color: Black